baber/WOPTO huggingface dataset:
Patent GB-348385-A (GB)
Title: Improvements in and relating to diaphragm pistons
IPC: F16D65/28
Filed: 1930-05-14
Abstract: 348,385. Pistons. ORMSBY, W., London Road, Long Sutton, Lincolnshire. May 14. 1930, No. 14873. [Class 122 (i).] A flexible diaphragm piston comprises a plurality of concentric cylinders formed alternately of rubber and rigid material, e.g. metal. Each rubber cylinder 4, 15 is compressed between two metal cylinders, 1, 14 whereby relative movement at the contacting surfaces is prevented. To increase adhesion between these surfaces, the diaphragm may be heated during or after assembly, or suitable adhesive may be applied between the surfaces. Axial movement may be limited by forming the ends of the metal cylinders with oppositely directed radial flanges. The Figure shows the invention applied to the expander cylinder of a braking system. The rubber cylinders may be of greater length than the adjacent metal cylinders, whereby the uncompressed ends of the rubber prevent escape of fluid between the contacting surfaces.
Patent GB-457122-A (GB)
Title: Improvements in and relating to roof supports for mines
IPC: E21D17/00
Filed: 1935-05-22
Abstract: 457,122. Mine-roof supports. SYLVESTER, W., Hoston House, Pinnox Street, Tunstall, Staffordshire. May 22, 1935, No. 14888. [Class 20 (ii)] A mine-roof support comprises an articulated member with joints near its ends and a pit-prop at each end to support the end portions of the articulated member. The end portions of the articulated member a may be constituted by blocks or cap members b supported by the props d, the member a being formed of corrugated steel of channel section and being detachably connected at its ends to the blocks. Removal of one shore allows the support to pivot about its other end and so prevent bending of the support. Supports may be disposed in rectangular formation, the members b being formed with sets of ears b<1> on each face and one end of opposite supports being hooked to pins b<2> carried by the ears on opposite faces. Further supports g may be carried at the centres of the main roof supports. In a modification, the end portions of the articulated members may be formed of short corrugated channel section bars. The support members a may in addition be hinged at other points than near the ends. The Provisional Specification states also that when the supports are disposed in rectangular formation, only two of the bars may be hinged and the other two may be formed of wood.
Patent GB-1260296-A (GB)
Title: Rotary plug gas tap
Inventor: OATLEY GERALD ARTHUR
IPC: F16K5/10
Filed: 1968-03-28
Abstract: 1,260,296. Valves. CANNON INDUSTRIES Ltd. 28 March, 1969 [28 March, 1968], No. 14915/68. Heading F2N. In a rotary plug gas tap, which has an inlet 23 and an outlet 31, the plug 27 is formed with two apertures 28 and 29<SP>1</SP> which are angularly offset and axially displaced with respect to each other such that a high gas supply is obtained when aperture 28 is aligned with the inlet and a small supply when aperture 29<SP>1</SP> is aligned with the inlet, only one of the apertures being fully alignable with the inlet at any one time. A superficial plug recess 42 interconnects the two apertures such that in moving the plug between its two supplying positions, the flow to the outlet is never fully cut-off. Upon aperture 29<SP>1</SP> being placed in communication with the inlet, flow to the outlet 31 takes place through a metering device 38 removably secured within the valve plug. The metering device may be withdrawn from the plug without disturbing the latter, the withdrawal being possible subsequent to the removal of operating shaft 43. Inter-engagement between the shaft and plug is achieved by the provision of projections 44 on the former and recesses 46 on the latter. The innermost parts of the projections 44 serve also to co-operate with recesses 56 and 57, which are formed in a platesecurable to the valve body 20, and so to releasably lock the plug in either the position in which it is fully closed or in the position in which its aperture 29<SP>1</SP> is aligned with the inlet, release of the locking being achieved by inward depression of the shaft against the force of spring 55. Limitation of angular rotation of the plug is afforded by the co-operation of the outermost portions of projections 44 with lugs 53. In an alternative embodiment, Fig. 15 (not shown), the metering device is substituted by a needle valve (60) which is adjustable from outside the valve, the shaft being made hollow for this purpose.
Patent GB-1020177-A (GB)
Title: Resinous condensation products and their use
IPC: C08G12/26
Filed: 1964-04-10
Abstract: A resin is prepared by the interaction of melamine or an alkyl or aryl substituted melamine or a mixture thereof, an aldehyde, a saccharide, and a cycloaliphatic guanamine. Preferably, the guanamine should amount to 5-95% weight of the amine mixture, and the formaldehyde to 1.5 to 6.0 mols. per mol. of amine mixture, with the saccharide being 5-40% by weight of the total resin. Thiourea amounting to 0.5-2.5% of the weight of the melamine may be added during or after the preparation of the resin.  The substituted melamines may contain alkyl groups, preferably with 1-6 carbon atoms, or aryl groups, preferably containing 1-2 phenyl groups.  The guanamines preferably contain at most 15 carbon atoms, e.g. unsubstituted and 3-methyl- and 3,4-dimethyl-tetra- and hexa-hydro-benzo-guanamines. The aldehyde may be e.g. formaldehyde, acetaldehyde, crotonaldehyde, acrolein, benzaldehyde and furfuraldehyde.  The saccharide may be a mono-, di- or poly-saccharide, e.g. dextrose, glycerose, sucrose, galactose, maltose, dextrin, trihexosane, and starches. In examples, resins are prepared from melamine, sucrose, formaldehyde, and tetrahydrobenzo-guanamine, and are used in preparing laminates. As catalysts may be used amine salts of organic and inorganic acids, or inorganic salts, e.g. ammonium, zinc or magnesium chloride. Diethanolamine hydrochloride is used in the examples.
Patent GB-311662-A (GB)
Title: Improvements in or relating to cells which are sensitive to infra-red rays
IPC: H01L21/10
Filed: 1929-05-13
Abstract: 311,662. Telefunken Ges. f³r Drahtlose Telegraphie. May 11, 1928, [Convention date]. Heat-sensitive cells.-Cells sensitive to infrared radiation are made by the cathodic atomization (sputtering) on a suitable base of an alloy of selenium and heavier metals such as tellurium, from the same group in the periodic system, or such as bismuth, from neighbouring groups. The inertia of the cell may be reduced by the addition of up to 2 per cent of silver; and the sensitive material may be heat treated to increase its infrared sensitivity, and is preferably not thicker than the depth of the radiation.
Patent GB-1491088-A (GB)
Title: Electric lock assembly
IPC: E05B47/02
Filed: 1975-04-11
Abstract: 1491088 Solenoid-operated door bolt HT BALLEW 11 April 1975 14951/75 Heading E2A  In a solenoid-operated door bolt assembly, lateral forces applied to the bolt 40 are prevented from reaching the solenoid core 30 by a link 50 which is capable of transmitting axial movement only. The bolt assembly is mounted on a door 15A, but it may alternatively be mounted on its frame 13A. As shown upward movement on solenoid actuation by an A.C. supply is checked by a stop 31 on the core 30; the bolt is biassed by a compression spring 41 to act as a latch engaging a keeper portion 44A in the frame 13A; and a removable pin 56 may check return of bolt 40 by engagement with a bracket 34 the legs 36 of which are apertured to support the bolt.
Patent GB-550378-A (GB)
Title: Improvements in and relating to settling tanks
IPC: B01D21/06
Filed: 1941-11-21
Abstract: 550,378. Gravity-separation apparatus. HARTLEYS (STOKE-ON-TRENT), Ltd., and SMITH, W. Nov. 21,1941, No. 14978. [Class 111] In a settling tank 10 in which the liquor to be treated is fed through a submerged horizontal pipe 14 to a fixed central distribution box 23 from which it flows downwards into the tank, skimming blades 27 are carried by a central ring or turntable 2o rotatably mounted on the box 23 or on a separate track centrally slung from the crossbridge 21. The ring 26 may be rotated by a pinion 29 engaging a rack 26c thereon, or by a friction wheel, driven through a chain 34 and sprockets, or through bevel gearing, by a handle 37 or mechanical driving means. Alternatively, the spindle 32 may be extended inwardly and operated through gearing by the shaft 17 of the rotary scrapers, a clutch being provided for disconnecting the skimmer drive when the scum has been removed. The shaft 17 may be driven through worm gearing 20 and a shaft 19 from an electric motor 18.
Patent GB-119714-A (GB)
Title: Improvements in Carburetters for Internal-combustion Engines and the like.
Inventor: ROSE EDWARD DANIEL
IPC: F02M11/00
Filed: 1917-10-17
Abstract: 119,714. Rose, E. D., Fletcher, H., and Collier, A. W. Oct. 17, 1917. Spray carburettors.-The casing 1 of a spray carburettor has, in its lower surface, an air inlet aperture 3 into which project fuel nozzles 4 which are brought into action in succession by a solid plunger G which controls proportionately the air inlet. The plunger is actuated by a Bowden cable 8 and its closing movement is limited by an adjustable screw 15 so as to keep one of the nozzles uncovered more or less to serve as a pilot nozzle. The effective area of the air inlet 3 may be independently controlled by a rotatable sleeve 13 having four ports 13<a> therein of different sizes. The sleeve is held in its adjusted position by a spring-mounted plunger 14<b>. The float is spherical. has rigidly attached thereto a conical valve and, in its lowest position, rests on a curved sheet of gauze which ser.ves to filter the fuel passing to the nozzles. The nozzles and air inlets may be surrounded by a dust-excluding cover.
Patent GB-245662-A (GB)
Title: Improvements in and relating to electrically-operated vacuum cleaners
IPC: A47L5/36
Filed: 1925-06-10
Abstract: 245,662. Bimm, G. R. June 10, 1925. Brush-holders.-The carbon brushes 32 of the motor in a vacuum cleaner are guided by a tube with a collar formed of two washers 34, the tube being held in place in the motor frame 31 by insulating washers 35 pressed against the washers 34 by a ring 36. An insulating plug 38 presses a spring (not shown) against the brushes.
Patent GB-968240-A (GB)
Title: Preparations for combating phytopathogenic microorganisms
IPC: C07C275/42
Filed: 1962-04-18
Abstract: 968,240. Trifluoromethyl-phenyl thio-ureas. CIBA Ltd. April 18, 1962 [April 21, 1961], No. 15123/62. Heading C2C. [Also in Divisions A2 and A5] The invention relates to compounds of the general formula: in which R represents a phenyl radical which may be substituted by at least one halogen atom or an alkyl or alkoxy group containing 1 to 4 carbon atoms or at least one of the groups (in which R represents an alkyl group containing I to 4 carbon atoms and A and A<SP>1</SP> each represent hydrogen or an alkyl group containing 1 to 4 carbon atoms), which are prepared by reacting bis-3:5-trifluoromethyl phenyl isothiocyanate with a compound of the formula NH 2 -R where R is as defined above, by reacting bis-3 :5-trifluoromethyl aniline with a compound of the formula R-N=C=S where R is as defined above or by reacting carbon disulphide with an appropriately substituted aromatic amine. Specified compounds prepared are those of the formulae: The compounds are used to combat phytopathogenic micro-organisms (see Division A5). Specification 956,520 is referred to.
Patent GB-1445543-A (GB)
Title: Electro-mecahnical transducer apparatus for transforming angular displacements into linear displacements
IPC: F16H53/04
Filed: 1974-04-05
Abstract: 1445543 Cams; converting rotary into reciprocating motion FERNSTEUERGERATE KURT OELSCH KG 5 April 1974 [10 April 1973] 15279/74 Heading F2K A radially extending adjustable contour spiral cam 22 of a disc 12 fast on a rotatable input shaft 10 acts via a pivoted rocker arm 26, or a radially slidable cam follower (50, 72) (Figs. 3 and 4, not shown) to linearly move a member 40 forming the input member of an inductive displacement pick-up 42. The angular displacement of the shaft 10 may, according to the readily adjustable cam contour 24, transform the angular displacement of the shaft 10 into a linear displacement of the member 40 which is related proportionally, i.e. according to a linear function, or according to any other predetermined, i.e. ncn-linear function, to said angular displacement. As shown (Fig. 5 and Figs. 6 and 7, not shown) the adjustable contour spiral cam is formed by a flexible steel strip 84 arranged over a number of eccentrically adjustable support pins 80, the strip 84 being secured at one end 86 and tensioned over the pins 80 by a spring 90 at its other end. Screw driver slots 82 formed in the ends of the pins 80 enable the pins 80 to be eccentrically adjusted to adjust the spiral cam contour of the flexible strip to any required form within the limits of the eccentric support pins 80. In Figs. 8 to 10 the flexible strip 84 is replaced by a wire (94) seated in V-grooves (96) formed in the eccentric adjuster studs 80. In Figs. 11 and 12 (not shown) the flexible cam contour strip or wire is carried by mountings (176) radially adjustable in slots in the cam disc by the eccentrically ended pins.
Patent GB-1339681-A (GB)
Title: Tape cassette adapter
IPC: G11B25/06
Filed: 1972-04-04
Abstract: 1339681 Adapting cassettes for cartridge players NIPPON VICTOR KK 4 April 1972 [7 April 1971 12 May 1971 19 May 1971 2 June 1971 6 July 1971 (2) 26 July 1971] 15295/72 Heading G5R A cassette adapter 10 has the external shape of a conventional cartridge and receives a tape cassette 12 for enabling the latter to be used in a cartridge machine, the cassette tape 68 being interposed, for transport thereof, between a fixed pin 28 projecting into the cassette 12 (and replacing the usual capstan) and a drive roller 21 which frictionally drives the tape 68 and is belt driven from a pinch roller 30 engageable with the player capstan 72. The drive roller 21, a pin 44 for tensioning drive belt 43, and a magnetic head 22 are mounted on a lever 32 pivoted at 33 and are urged into their operative positions, Fig. 5, against a spring 34 by a resiliently mounted roller 70 on the player, which engages the lever 32, via an intermediate lever 35 disposed in an opening 37, when the adapter is inserted. Takeup shaft 15 is also belt-driven from the pinch roller 30, and supply shaft 16 is frictionally braked by a felt washer (65), Fig. 9 (not shown). Signals from the head 22 are amplified by an amplifier 47 and passed to a head 54 which is electromagnetically coupled to the player head 73. A mercury cell power supply 49 is connected to the amplifier 47 through contacts 52, 53 which make when the lever 32 is pivoted. The drive roller 21 thickness is less than the tape width. The fixed pin 28 preferably has a smooth planar surface (67), Fig. 6 (not shown), opposite the roller 21. The planar surface may be recessed in a slot (83), Fig. 8 (not shown). The pin may have a low-friction sleeve (80), Fig. 7 (not shown), of, for example, P.T.F.E.
Patent GB-852978-A (GB)
Title: Process for the production of 4 chlor-2 aminotoluene
IPC: C07C205/12
Filed: 1959-05-05
Abstract: A process for the manufacture of 4-chloro-2-nitro-toluene comprises the diazotisation and subsequent treatment by the Sandmeyer reaction of 4-amino-2-nitrotoluene obtained by the nitration of p-toluidine in cold sulphuric acid.  In an example p-toluidine is nitrated with nitric acid in sulphuric acid to give 4-amino-2-nitro-toluene which is diazotised with nitrous acid and the diazonium salt poured into an aqueous solution of cuprous chloride and hydrochloric acid to give 4-chloro-2-nitro-toluene. Reduction of this compound with formic acid and iron chips gives 4-chloro-2-amino-toluene.
Patent GB-1486388-A (GB)
Title: Filter coffee machine
IPC: A47J31/54
Filed: 1976-04-14
Abstract: 1486388 Coffee machines ROWENTAWERKE GmbH 14 April 1976 [24 April 1975] 15336/76 Heading A4E [Also in Division F4] A coffee machine comprises an upper unit removably mounted on a lower unit, the upper unit including the cold water container 4 and a filter 3 and the lower unit including a coffee pot 11 and an electric continuous flow heater 12 acting as a hot-plate, there being a cold-water down-pipe (13) and a hot-water riser pipe 5 connecting the upper and lower units with detachable connections in the pipes. As shown, cold water flows from the container 4 down the pipe (13) - whose detachable connection is not described in detail, through the heater 12, the riser pipe 5, the filter 3 containing the coffee grounds and into the coffee pot 11. The detachable connection A in the riser pipe 5 includes Figs. 4-6, (not shown) a device 18 for closing the end of the lower part 14 of the pipe 5, the device being movable against a spring (19) by the upper part of the pipe engaging a cam surface (21) to open the lower part 14 when the pipe is reconnected. An overflow (15) at the pipe connection leads to the coffee pot. In an embodiment Fig.7, (not shown) the continuous flow heater is said to form the base of the coffee pot, the body of the pot being replaceable.
Patent GB-787423-A (GB)
Title: A machine for grading fruits
IPC: B07B13/065
Filed: 1956-05-17
Abstract: 787,423. Screening apparatus. VRIES S. DE. May 17, 1956 [June 6, 1955], No. 15344/56. Class 117 A fruit grading machine includes stationary parallel guideways 1. 2 which support endless chains 5, 6 carrying strips 7. 8 to which are secured conveyer belts 9. 10 of rubber &c. The inner edges of the belts extend into the space between the guideways and are supported by guidefaces 12, 13 hinged at 14 to the. guideways. The guide-faces are sub-divided in the direction of their length to provide two or more successive grading compartments, one or more of which has means for adjusting the inclinations of its guide-faces and hence the gap 11 between them. For this purpose rods 16 are fixed to and extend from the guide-faces and cross each other on the vertical axis 17, and a guide 18 on an adjusting rod 19 engages the rods 16 at the crossing-over point. By vertically adjusting the rod 19 in a supporting strip 20 the guide 18 moves the rods to vary the gap 11. A screw 21 clamps the rod 19 in the required position. Graduations may be provided on the strip 20 and a pointer 23 on the rod 19 may indicate the size of the gap.
Patent GB-1200865-A (GB)
Title: Speed control circuit for an electric motor
IPC: H02P25/10
Filed: 1969-03-24
Abstract: 1,200,865. Automatic speed control. JANOME SEWING MACHINE CO. Ltd. March 24, 1969 [March 22 1968; July 5, 1968], No.15385/69. Heading G3R. [Also in Division H2]  A motor M is supplied from an A.C. source by a triggered conduction element SSS M  controlled by an adjustable trigger circuit comprising a capacitor C1 (or inductor); a charging circuit therefor and a triggered switching device SSS T  arranged to respond to a predetermined level of charge on the capacitor C1 to fire the triggered conduction element SSS M , the charging circuit comprising a full wave rectifier 4 with its input terminals A, B in series with C1 and its output connected to the emitter and collecter of a transistor Tr to the base of which is applied a control voltage which represents speed error. The speed error signal is derived by combination of a pre-set reference e s  from a potentiometer R4 and a speed voltage eg derived from an A. C. tachometer generator PG driven by the motor M. The varying control voltage varies the impedance of the transistor and therefore the charging rate of C1; this causes SSS T  to become conducting earlier or later in the A. C. supply cycle. When SSS T  conducts, it discharges a capacitor C2 through a pulse transformer DT whose secondary is in series with the triggered conduction element SSS M . The triggered devices SSS T , SSS M  are symmetrical devices supplying A. C. to the motor M. The capacitor C1 may be replaced by an inductor. In a modified circuit Fig.3 (not shown) the voltage e s  is stabilized by using the forward voltage drop across several series connected silicon diodes. The tachometer generator may be a three phase type with a half wave rectifying arrangement.
Patent GB-924902-A (GB)
Title: Shuttle guiding apparatus for looms
IPC: D03D49/60
Filed: 1960-05-02
Abstract: 924,902. Shuttle races. SULZER FRERES S.A. May 2, 1960 [May 8, 1959], No. 15433/60. Class 142 (2). A sley 19 has a magnetic shuttle race 26 for guiding the shuttle. The magnets may be electrically energized wires or separate permanent magnets 28 which may be variously arranged and shaped (Figs. 10-15, not shown) or gapped to provide a variable field strength, e.g. for retarding the shuttle at the sley ends. The shuttle may be guided by bars 32 or the race and shuttle may be shaped (Fig. 5). For a vertical loom (Fig. 9) only one guide 32 need be provided.
Patent GB-416444-A (GB)
Title: Fluid-operated power actuator
IPC: F16H63/30
Filed: 1932-12-10
Abstract: 416,444. Pneumatic servomotors. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Dec. 10, 1932, No. 15458 /33. Convention date, Dec. 11, 1931. Divided out of 416,407, [Group XXIV]. [Class 8 (ii).] A fluid-actuated servomotor, in which the piston may adopt either of two alternative positions in a cylinder, comprises a piston 48 mounted upon a boss 50 slidably mounted between stops in a piston rod 52. The piston rod is provided with bores 60, 62 which connect with vacuum and atmosphere respectively through nipples 66, 64 and the rod also has ports 80, 84, 82, 86 which under certain conditions co-operate with ports in the boss 50. In the position shown, the ports 76, 84 and 74, 82 are in alignment and atmospheric pressure is admitted to the left-hand side of the piston and vacuum to the other side moving it to the right-hand end of the cylinder and compressing the spring 88. When the bore 60 is open to atmosphere, the spring 88 moves the piston in the rod so that the ports 78, 86 and 72, 80 align and on the next occasion that the bore 60 is connected to vacuum, the piston is moved to the left-hand end of the cylinder. The servomotor may be actuated by fluid pressure instead of vacuum. Specification 416,407 is referred to.
Patent GB-446864-A (GB)
Title: Improvements in or relating to float-actuated valves for water cisterns and the like
IPC: F16K31/26
Filed: 1935-05-28
Abstract: 446,864. Float - actuated valves. KINNES, G., 5, Alfred Street, Cape Town, South Africa. May 28, 1935, No. 15504. [Class 135] A float valve for cisterns and the like in which the valve member 9 is opened by the float against the water pressure in the supply pipe 7 is provided with an air chamber 21 non- removably secured to the valve casing, for example, by brazing, at a point opposite the water inlet to prevent " water-hammer " due to sudden closure of the valve. The air chamber may be in the form of a U-tube as shown closed at its outer end 22, or this end may open into a closed cylindrical or spherical vessel.
Patent GB-552476-A (GB)
Title: Improvements in collector for milking machines
Inventor: CARL ELIS ELLISON
IPC: A01J5/04
Filed: 1941-12-02
Abstract: Teat-cups are connected to the collecting manifold 7 by rotatable nipples 9, each having a passage 17 in alignment with an opening 6 in the cover of the manifold 7 while milk is being drawn but which moves out of alignment with the opening and thereby preserves the vacuum as the teat falls from the udder.